activity
20242026
most citedPristine Massive Star Formation Caught at the Break of Cosmic Dawn

5 citations · 13 across the 17 of their papers we have counts for

collaborators

17 papers

astro-ph.GA2026

Surveying the Universe in 4D: Beating Cosmic Variance with Wide-Field Slitless Spectroscopy from HST, JWST, Euclid, Roman, and Beyond

Andreea Petric, Gaël Noirot, Stacey Alberts +71

We summarize strategies, lessons learned, and future directions from the Space Telescope Science Institute workshop Surveying the Universe in 4D: Beating Cosmic Variance with Wide-…

astro-ph.GA2026

Overmassive No More: The Case for Little Red Dots Hosting Black Hole Seeds as Massive as Single Supermassive Stars

Wendy Q. Sun, Rohan P. Naidu, Hanpu Liu +17

Little Red Dots (LRDs) display singular properties unlike any known class of AGN or galaxies, motivating novel mass estimators for their central engines. Inspired by their similari…

astro-ph.GA2026

Can Little Red Dots Contribute To The Early Universe Cosmic Dust Budget?

Chris Ashall, Rohan P. Naidu, Alberto Torralba +11

The origin of dust in the early Universe remains uncertain. We explore whether Little Red Dots (LRDs) could provide a high-redshift dust-production channel. Motivated by an analogy…

astro-ph.GA2026

Little Red Dots at z~2 in EIGER reveal a gentle decline with respect to their peak number density at z~5

Shrriya Kapoor, Jorryt Matthee, Alberto Torralba +10

We report the discovery of a sample of little red dots (LRDs) at identified from deep JWST/NIRCam imaging and wide-field slitless spectroscopy over arcmin f…

astro-ph.GA2026

Little Red Dots as Intermediate Mass, Super-Eddington Engines: Insights from Type IIn Supernovae and The 1837-1856 Great Eruption of Carinae

Rohan P. Naidu, Jorryt Matthee, Anna de Graaff +20

JWST's Little Red Dots (LRDs) display a unique constellation of features that do not occur simultaneously in any other class of galaxies or AGN. Here we observe that many of these…

astro-ph.GA2026

Black Hole Stars Across the Universe: Identifying Central Engine Dominated Little Red Dots at

Andrea Weibel, Rohan P. Naidu, Pascal A. Oesch +16

Photometric selections of Little Red Dots (LRDs) largely rely on identifying their ``V-shaped'' spectral energy distribution (SED). Recent work suggests this V-shape stems from a c…

astro-ph.GA2026

How I Wonder What You Are -- JWST's Little Red Dots do not TWINKLE

Zhaoran Liu, Rohan P. Naidu, Amy Secunda +20

Little Red Dots (LRDs) are a population of compact, red sources that have emerged as one of the most puzzling findings of JWST. Variability provides a direct probe of their central…

astro-ph.GA2026

BEACON: JWST NIRCam Pure-parallel Imaging Survey. III. Constraints on the UV LF and the Clustering of z~7-14 Galaxies

Kimi C. Kreilgaard, Charlotte A. Mason, Takahiro Morishita +21

The James Webb Space Telescope (JWST) has extended the frontier of galaxy detection to redshifts z>11, finding a high abundance of UV-bright sources that challenge theoretical mode…

astro-ph.GA2026

BEACON: JWST NIRCam Pure-parallel Imaging Survey. IV. A Systematic Search for Galaxy Overdensities and Evidence for Gas Accretion Mode Transition

Ryo Albert Sutanto, Takahiro Morishita, Tadayuki Kodama +20

We systematically search for galaxy overdensities using 20 independent fields with a minimum of six filters (F090W, F115W, F150W, F277W, F356W, and F444W) from BEACON, the JWST Cyc…

astro-ph.GA2026

BEACON: JWST NIRCam Pure-parallel Imaging Survey. II. Physical Properties of Galaxies

Yechi Zhang, Takahiro Morishita, Kimi C. Kreilgaard +23

We present photometric properties of 161 galaxy candidates at selected from the second data release (DR2) of BEACON, a JWST Cycle 2 pure-parallel NIRCam imaging program. C…

astro-ph.GA2026★ 5 cited

Little Red Dot Host Galaxy Black Hole Star: A Gas-Enshrouded Heart at the Center of Every Little Red Dot

Wendy Q. Sun, Rohan P. Naidu, Jorryt Matthee +30

The central engines of Little Red Dots (LRDs) may be ``black hole stars" (BH*s), early stages of black hole growth characterized by dense gas envelopes. So far, the most direct evi…

astro-ph.GA2025

Environmental Regulation of Dust and Star Formation Unveiled by Subaru Dual Narrow-band Imaging: Degree-scale Balmer Decrement Mapping across a z = 0.9 Supercluster

Zhaoran Liu, Tadayuki Kodama, Brian C. Lemaux +13

We present results from a dual narrow-band imaging survey targeting the CL1604 supercluster at z = 0.9 using the Subaru Telescope. By combining the NB921 filter on HSC and the NB12…

astro-ph.CO2025★ 5 cited

Pristine Massive Star Formation Caught at the Break of Cosmic Dawn

Takahiro Morishita, Zhaoran Liu, Massimo Stiavelli +3

The existence of galaxies with no heavy elements is a key prediction of cosmological models. So far no "zero-metallicity", or Population~III, galaxies have been identified. Here, w…

astro-ph.GA2025

Green Flash: Residual Emissions Enshrouded in Low-mass Balmer-break Galaxies at

Kosuke Takahashi, Takahiro Morishita, Tadayuki Kodama +3

Recent James-Webb Space Telescope (JWST) observations have discovered galaxies that are already passively evolving at , \,Gyr after the Big Bang. Remarkably, some of…

astro-ph.GA2024

Deciphering Gas Dynamics and Star Formation in a z=1.1 Main Sequence Spiral Galaxy with ALMA and JWST

Zhaoran Liu, Tadayuki Kodama, Takahiro Morishita +6

We present a joint analysis of high-resolution CO(2-1) and Paschen- emission lines to trace gas dynamics and spatially resolved star formation in ASPECS-LP.3mm.06, a mai…

astro-ph.GA2024★ 2 cited

Accelerated Emergence of Evolved Galaxies in Early Overdensities at

Takahiro Morishita, Zhaoran Liu, Massimo Stiavelli +8

We report the identification of two galaxy overdensities at in the sightline of the galaxy cluster Abell 2744. These overdensities consist of 25 and 17 member galaxies,…

astro-ph.GA2024★ 1 cited

Characterizing Dust Extinction and Spatially Resolved Paschen- Emission within 97 Galaxies at with JWST NIRCam Slitless Spectroscopy

Zhaoran Liu, Takahiro Morishita, Tadayuki Kodama

We present results on the Paschen- (Pa) emitting galaxies observed as part of the JWST FRESCO survey in the GOODS-North and GOODS-South fields. Utilizing the JWST NIRCam wide…